文章基本信息

标题：Energy-saving Methods in the Operation of Virtual Networks Based on Divided Time Slices
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作者：ZHUANG Lei ; HU Yu-xiang ; MA Ding 等
期刊名称：International Journal of Grid and Distributed Computing
印刷版ISSN：2005-4262
出版年度：2016
卷号：9
期号：7
页码：101-110
DOI：10.14257/ijgdc.2016.9.7.11
出版社：SERSC
摘要：Reducing energy consumption has also become an important way to reduce expenditures and increase revenue for ISP. For solving the problem of dynamically changing network-flow of virtual network in runtime, we first analyze relations and differences between virtual network and IP network on energy-saving issues. We secondly model the makeup of energy consumption in virtual network, and determine the object of energy-saving in virtual network at. Finally we propose the solutions to this energy- saving problem. The solutions can be described as follows: (1) based on the historical data of daily network-flow, we divide one day into two time slices, and one is called idle time slice, the other is called busy time slice; (2) we design the dynamic switch-off algorithm and run it at the beginning of idle time slice, and we use former algorithms to be started at the beginning of busy time slice; (3) in the dynamic switch-off algorithm we determine the method to select virtual networks and the method to remap; (4) we apply roulette wheel to select virtual networks, in the selection method we consider both current influences on energy-saving and influences in the future. Simulation results show that the dynamic switch-off algorithm can effectively select virtual networks, and the whole solution performs well in energy aware virtual network in runtime.
关键词：energy-saving; virtual network; in operation; time slice